Curtain-drying apparatus.



UNITED "rn'rns Patented July 14, 1903.

A'rENr CURTAIN-DRYINGAPPARATUS.

SPECIFICATION forming part of Letters Patent No. 733,718, dated July 14,1903.

Application filed April 22, 1903. Serial No. 153,784. No mmleli! T0 (0whmm it mm/y concern:

Be it known that I, HENRY C. HILDEBRAND, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Curtain-Drying Apparatus, ofwhich the following is a specification.

The object of my invention is to provide a novel construction ofapparatus for drying lace curtains which shall supplant the meanshitherto more commonly employed for the purpose comprising a frame onwhich the curtain is stretched and incurring in its use an arduous andslow procedure in accomplishing the drying purpose, which isaccomplished with great facility and much more rapidly by the use ofmyimproved apparatus, illustrated in the accompanying drawings, in whichFigure 1 is a broken vertical longitudinal section of my improvedapparatus, and Fig. 2 a broken perspective view showing details.

A is a drum of sheet metal or other suitable material,stationarilysupported from its heads on standards B B in the mannerhereinafter described.

C is a numerously-perforated drum, which may be formed of the samematerial as the drum A, which it envelops to form about the inner drumthe hot-air space D, containing a steam-coil E, extending about thestationary inner drum. About the drum C is wrapped a blanket F, of anysuitable material.

The standards B terminate at their upper ends in annular bearings a,each containing a sleeve or bushing b, confined in it by setscrews 1)and through which respectively extend the steam-inlet pipe 0 andsteam-outlet pipe c, each threaded at its inner end, as shown at :11,and confined against movement in its bearing by a set-screw The threadedends of the steam-pipes screw into hubs ll (Z on the heads of the innerdrum A, there by stationarily supporting the latter on the standards,and threaded extensions 0 and 0 rise from thehubs (Z, in which chamberse e are formed, with which said extensions communicate and from whichthey lead, respectively, to opposite ends of the coil E, being coupledtherewith, as represented at ff.

The outer perforated drum C is rotatably journaled on the standards atits hubs g g,

surrounding the sleeves Z) near their inner ends and confined betweenthe bearings d.

Steam admitted into-the coil through the pipe 0 discharges through thepipes c and in its course through the coil quickly heats air circulatingabout it in the drying-space D because of its comparatively small area,which prevents dissipation and undue loss of heat, such as would resultwere the heating-space to comprise the entire inner area of theperforated drum.

To use the apparatus for its purpose, a curtain to be dried is fastenedat one end upon the blanket F, a longitudinal row of permanent pins hbeing shown in Fig. 2 for fastening it at that end, and circumferentialrows of pins, one of which is indicated at h, may also be provided toextend permanently from the blanket about the drum C, near its outerends, for fastening the curtain along its longitudinal edges. Instead,however, of providing permanent pins on the blanket for the curtain-fastening purpose, the curtain may be fastened in place in any othersuitable manner, as by means of ordinary pins inserted into thecurtain-blanket at desired intervals. Then one end of a. curtain hasbeen thus fastened, the drum C is revolved to wind lengthwise about it,(the curtain,) the opposite end of which is then fastened to theblanket. In this manner a plurality of curtains may for simultaneousdrying be imposed one upon the other about the perforated drum, withtheir initial ends and edges fastened by the permanent pins h h, ifprovided, or they may be pinned one to the other in their superimposedrelation. The steam coursing the coil E quickly heats the air in theheating-space D, which permeates the blanket and curtain or curtainsimposed thereon, rapidly and thoroughly drying them in their stretchedcondition, from which they may be readily released when dry, to besupplanted by one or more other curtains requiring to be dried.

The dimensions of the perforated outer drum should be such as to causeits circumference to equal or exceed the length of the longest curtainto be dried and to cause its length to exceed the width of such acurtain.

IVhat I claim as new, and desire to secure by Letters Patent, is-

ICO

1. A curtain-drying apparatus, comprising, in combination, astationarilysupported inner drum, a rotatably-supported and perforatedouter drum enveloping said inner drum and forming an intermediaterelatively narrow air-heating space, and a steam-coil surrounding theinner drum within said space.

2. A- curtain-drying apparatus comprising, in combination, astationarily-supported inner drum provided on its heads With chamberedhubs, a rotatably-supported, perforated and blanket-coveredouter drumenveloping said inner drum and forming an intermediate air-heatin gspace, steam inlet and outlet pipes screwing into said hub-chambers,extensions of said pipes rising from and communicating with saidchambers, and a steam-coil surrounding the inner drum within said spaceand with the opposite ends of which, respectively, said extensions arecoupled.

3. A curtain-d ryin g apparatus comprising,

in combination with standards terminating at their upper ends inbearings and having sleeves confined in said bearings, an inner drumhaving chambered hubs on its opposite heads, steam inlet and outletpipes confined in said sleeves and screwing respectively into said hubs,a perforated blanket covered outer drum enveloping said inner drum toform an intermediate air-heating space and provided on its heads withhubs at which it is journaled to rotate on said sleeves, extensions ofsaid pipes rising from and communicating with the chambers in the hubsof the inner drum, and a steam-coil surrounding the inner drum Withinsaid space and with the opposite ends of which, respectively, saidextensions are coupled.

HENRY C. IIILDEBRAND. In presence of NV. B. DAVIES, WALTER XV. WINBERG.

